Phillip, he didn't ask how to get the best hashrate to efficiency for long term, he asked how to get the most hashrate out of the SP20 regardless of consumption. I highly recommend against using the auto fan feature above 1350-1400 GH/s. I find it keeps the chips too warm for my comfort, not to mention i noticed a 2-3% increase in power efficiency from running the fans at full speed compared to letting the auto setting do its thing. Bust out the earplugs!
He has used gear with no warranty.
Setting a fan at 100% and using 200 watts to squeeze out 130gh is not the right thing to do even if his power is free.
but it is merely my opinion. On what he should do to get the most out of his machine.
I feel it would last longer and not overheat with my settings. While it will simply burn up the way he is running it as indicated by his temp readings.
his current numbers : 1484gh 1035 watts fan 90
my settings : 1351gh 836 watts fan 12
power is zero cost
133 gh earns 11.88 usd or 0.04298 btc per month with 0% diff increases so more like 10 usd the next month or .037 btc
If he thinks that his high speed no warranty move is worth it he can try that.
Or he can relax and just cruise a bit.